Improvement in stesvi-winding watches



H.R.Smi'th c R.Flsm. N0. 119,889, v, Patented Oct. 10,1871.

WATCH ATTEST.

M. wh MA 3y/@3M @ma fm' www l UNITED STATES PATENT QEEICE.

HARRY It. SMITH AND RUFUS FOLSOM, OF CINCINNATI, OHIO.

IMPROVEMENT IN STElVl-WiNDING WATCHES.

To all whom it may concern:

Be it known that we, HARRY It. SMITH and RUFUS FOLSOM, both of Cincinnati, Hamilton county, Ohio, have inventeda new and useful Improvement in Stem-finding \Vatches, ot' which the iollowing is a speciiication:

The invention relates to a class of watches whose winding and setting are eii'eeted wholly through the push-stein, which, by reason of its actuating-pinion projecting but slightly into the interior of the watch, is never disturbed by the removal or replacement of the worlis, and a shifting mechanism which, through the medium of a train of wheels that revolve parallel and are shiftable perpendicularly to the pillow-plate, is capable of being connected alternately with the winding-and-setting mechanism ot the watch. One advantage of such arrangement of the intermediate wheels is that the act of ungearing does not at all disturb the hands from their adjusted position, as dothose arrangements' whose wheelsshift in direction of their planes, and in which the precise position to which the hands have been set is liable to be disturbed in the operationpof ungearing. The intermediate wheels being all parallel with the pillar-plate, are readily applicable to watches already in the market, without any disarrangement or change of their internal mechanism, so that ordinary key-winding watches can, on our plan, be readily converted to stem-winders.

Figure l is a perspective view of a watch embodying our improvement. Fig. 2 is an axial section through the push-piece, the parts being in position for winding. Fig. 3 is a similar section with the parts in position for setting. Fig. 4 is an enlarged axial section through the double wheel in its connected condition. Fig. 5 is a section, showing the upperinember of the double wheel elevated.

A represents the pillow-plate or back-plate, and B the dial-plate or front plate of a watch movement or works.77 rlhe pendent C is traversed axially by a cylindrical stem or pusher, D, capable of rotation in said pendent, as well as ot' being pushed inward in the ordinary way to operate the cap-spring. The outer extremity ot' the pusher has a knob or milled head, E, and its inner end a pinion, F, which gears' with a contrate-wheel, Cr, that revolves loosely upon an under-cut hub, Q, which surrounds a shaft,

H, whose spur-wheel I gears with a wheel, J upon the mainspring arbor. The shat't II, with its wheel I, is capable ot' a slight longitudinal motion or shift, and is provided `with pins or clutches f1', which, when said wheel and shaft are depressed by engaging with the depressions g in the contrate-wheel, Gr cause the wheels to revolve as one. The arrangement G H I we call our double wheel. The depression and elevation ot' the wheel I are effected through the instrumentality of a spring, K, one end of which is fastened to the plate B, and the other end engages with shat't H. A pin, L, which rises from said spring K, through an oritice in plate B, be. ing depressed by the push-piece M, causes, iu turn, the depression of the spring K, and through it ofthe shat't I-I and wheel I, as already stated. In order to enable the push-piece M so to act, its under surface is of a wedge-like or chami'ered form at m, as represented. NVhen relieved from the pressure of the push-piece by the retraction thereof, the spring K operates to throw up the shaft H and wheel I so as to uncouple the latter from the wheel G, and consequently disconnect it from the stem or pusher D. At the same instant that this disconnection occurs a wheel, N, that revolves upon a screw or stud on spring I), (which wheel is in constant gear with a cannon pinion, IL) being' acted on by chamfered end m oi' push -piece M, is caused by said spring I) to iiy up into mesh with the cogged periphery g ofthe contrate-wheel G, so as to place the stem l) in communication with the said cannon pinionwheel It, and thus enable the setting of the watch. The outer extremity of the push-piece llI has a beveled head, m, of such iorm that the act of closing the cap operates to drive in the push-piece and place the stem I) in communication with the winding mechanism at all times when the watch is closed. Vhile describing our preferred form, we reserve the right to vary the details of construction in non-essential particulars 5 for example, the winding wheels corresponding to I and J may be located below the back plate A instead ofthe iront-plate B.

WVe claimherein as new and of our inventionl. In combination with the mainspring wheel and hand-setting wheel of a stem-windin g watch, an intermedia-te wheel, rotating in a plane parallel to the watch-plate, and shiftable in a direction perpendicular thereto, for the purpose of transmitting motion to either the Winding or In testimony oi which invention We hereunto setting mechanism, as desired. set our hands.

2. The described arrangement of pusher D E HARRY R. SMITH. F, double Wheel G H I, (Whose upper member I RUFUS FOLSOM.

gears with the mztinspring` Wheeh) and shiftztble pinion N gearing with the member Gr, and with Witnesses:

the cannon pinion-wheel, in the described com- GEO. H. KNIGHT,

biimtion with the shiiting-devices M, m, mf, m, J AMES II. LAYMAN. (36) L, K, P, and Q, for the purpose set forth. 

